How far is Washington D.C. from Reading, PA?
The distance between Reading (Reading Regional Airport) and Washington D.C. (Washington Dulles International Airport) is 127 miles / 204 kilometers / 110 nautical miles.
The driving distance from Reading (RDG) to Washington D.C. (IAD) is 163 miles / 262 kilometers, and travel time by car is about 3 hours 34 minutes.
Reading Regional Airport – Washington Dulles International Airport
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Distance from Reading to Washington D.C.
There are several ways to calculate the distance from Reading to Washington D.C.. Here are two standard methods:
Vincenty's formula (applied above)- 126.900 miles
- 204.226 kilometers
- 110.273 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 126.893 miles
- 204.215 kilometers
- 110.267 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Reading to Washington D.C.?
The estimated flight time from Reading Regional Airport to Washington Dulles International Airport is 44 minutes.
What is the time difference between Reading and Washington D.C.?
There is no time difference between Reading and Washington D.C..
Flight carbon footprint between Reading Regional Airport (RDG) and Washington Dulles International Airport (IAD)
On average, flying from Reading to Washington D.C. generates about 44 kg of CO2 per passenger, and 44 kilograms equals 96 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Reading to Washington D.C.
See the map of the shortest flight path between Reading Regional Airport (RDG) and Washington Dulles International Airport (IAD).
Airport information
| Origin | Reading Regional Airport |
|---|---|
| City: | Reading, PA |
| Country: | United States  |
| IATA Code: | RDG |
| ICAO Code: | KRDG |
| Coordinates: | 40°22′42″N, 75°57′54″W |
| Destination | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |